"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 故障&可靠性测试
Case Name   : hot_standby_feedback为on时，备机备份延迟
Create At   : 2021/03/04
@zou_jialiang0505328126
Description :
    1.设置hot_standby_feedback为on
    gs_guc reload -D xxx -c 'hot_standby_feedback=on'
    2.设置延迟为1min
    3.切换备节点为级联备
    4.创建表
    5.查询各节点
    6.执行tpcc
    7.检查数据一致性
    8.重复6-7 5次
Expect      :
    1.设置成功
    2.设置成功
    3.切换成功
    4.建表成功
    5.1min后主备一致
    6.执行tpcc成功
    7.1min后主备一致
    8.通过率100%
History     :
    modified：2021/07/14  modified by @wan005: 适当减少tpcc执行次数 不影响断言
"""

import unittest
import time
from yat.test import Node
from yat.test import macro
from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.CommonSH import RestartDbCluster
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger


class RecoveryDelay(unittest.TestCase):
    commonshpri = CommonSH('PrimaryDbUser')
    nodes_tuple = ('PrimaryDbUser', 'Standby1DbUser', 'Standby2DbUser')

    @RestartDbCluster(*nodes_tuple)
    def setUp(self):
        self.log = Logger()
        self.log.info('----Opengauss_Reliability_Dbsys_Case259.py 开始执行------')
        self.db_primary_root_node = Node(node='PrimaryRoot')
        self.db_standby_node =  \
            [Node(node='Standby1Root'), Node(node='Standby2Root')]
        self.db_standby_user_node =  \
            [Node(node='Standby1DbUser'), Node(node='Standby2DbUser')]
        self.db_primary_user_node = Node(node='PrimaryDbUser')
        self.comshsta = \
            [CommonSH('Standby1DbUser'), CommonSH('Standby2DbUser')]
        self.constant = Constant()
        self.com_pri = Common('PrimaryRoot')
        self.com_sta = [Common('Standby1Root'), Common('Standby2Root')]
        self.tb_name = 'tb_259'

        self.log.info('=====安装ntp服务=======')
        install_cmd = "yum install -y ntp && " \
                      "systemctl enable ntpd && systemctl start ntpd"
        for i in range(2):
            result = self.db_standby_node[i].sh(install_cmd).result()
            self.log.info(result)

        self.log.info('------同步集群时间--------')
        for i in range(2):
            current = self.db_primary_root_node.sh(
                "date \"+%m/%d/%Y %H:%M:%S\"").result()
            self.log.info(current)
            datecmd = f'date -s "{current}";hwclock --systohc;' \
                f'service ntpd stop;ntpdate ntp.api.bz;service ntpd start'
            self.log.info(datecmd)
            result = self.db_standby_node[i].sh(datecmd).result()
            self.log.info(result)

    def test_recoverydelay(self):
        self.log.info('-----设置hot_standby_feedback=on---')
        result = self.commonshpri.executeGsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            'hot_standby_feedback=on')
        self.assertTrue(result)

        self.log.info('-----设置recovery_min_apply_delay=5min----')
        result = self.commonshpri.executeGsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            "recovery_min_apply_delay='5min'")
        self.assertTrue(result)

        self.log.info('-------将备节点切换为级联备---------')
        result = self.comshsta[0].buildStandby('-M cascade_standby')
        self.assertIn(self.constant.REBUILD_SUCCESS_MSG, result)
        result = self.comshsta[0].exec_refresh_conf()
        self.assertTrue(result)

        self.log.info('--------等待主备一致------------')
        result = self.comshsta[1].check_data_consistency()
        self.assertTrue(result)
        for i in range(90):
            result = self.commonshpri.check_cascade_standby_consistency()
            if result:
                break
            time.sleep(20)
        self.assertTrue(result)

        self.log.info('-----------------创建表----------------')
        sql = f"drop table if exists {self.tb_name};" \
            f"create table {self.tb_name}(i int, s char(10));"
        result = self.commonshpri.executDbSql(sql)
        self.log.info(result)
        self.assertIn(self.constant.TABLE_CREATE_SUCCESS, result)

        self.log.info('--------------查询各节点------------------')
        sql = f"select sysdate;select * from {self.tb_name};"
        result = self.commonshpri.executDbSql(sql)
        self.log.info(result)
        self.assertIn('(0 rows)', result)
        current = self.db_primary_root_node.sh(
            "date \"+%m/%d/%Y %H:%M:%S\"").result()
        self.log.info(current)
        current = self.db_standby_node[0].sh(
            "date \"+%m/%d/%Y %H:%M:%S\"").result()
        self.log.info(current)
        current = self.db_standby_node[1].sh(
            "date \"+%m/%d/%Y %H:%M:%S\"").result()
        self.log.info(current)
        for i in range(2):
            result = self.comshsta[i].executDbSql(sql)
            self.log.info(result)
            self.assertIn(self.constant.NOT_EXIST, result)
        time.sleep(310)
        for i in range(2):
            result = self.comshsta[i].executDbSql(sql)
            self.log.info(result)
            self.assertIn('(0 rows)', result)

        for i in range(5):
            self.log.info('-----------------执行TPCC-------------')
            result = self.com_pri.startTPCC(self.db_primary_root_node,
                                            macro.TPCC_PATH)
            self.log.info(result)
            self.assertIn(self.constant.TPCC_SUCCESS_MSG, result)

            self.log.info('--------等待主备一致------------')
            result = self.comshsta[1].check_data_consistency()
            self.assertTrue(result)
            for j in range(90):
                result = self.commonshpri.check_cascade_standby_consistency()
                if result:
                    break
                time.sleep(20)
            self.assertTrue(result)

            self.log.info('-----检查数据一致性----')
            nodes_tuple = (self.db_primary_user_node,
                           self.db_standby_user_node[0],
                           self.db_standby_user_node[1])
            flag = self.com_pri.check_data_sample_by_all(r'\d', *nodes_tuple)
            self.assertTrue(flag)

            table_dict = self.com_pri.format_sql_result(
                self.commonshpri.executDbSql(r'\d'))
            table_name = table_dict.get('Name')
            for name in table_name:
                select_sql = f'select count(*) from {name};'
                flag = self.com_pri.check_data_sample_by_all(select_sql,
                                                             *nodes_tuple)
                self.assertTrue(flag)

    def tearDown(self):
        self.log.info('-----------------------------环境清理--------------------')
        self.log.info('-------------还原recovery_min_apply_delay----------')
        result = self.commonshpri.executeGsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            'recovery_min_apply_delay=0')
        self.log.info(result)

        result = self.commonshpri.executeGsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            'hot_standby_feedback=off')
        self.log.info(result)

        self.log.info('--------还原集群-------')
        self.comshsta[0].buildStandby('-M standby')
        result = self.comshsta[0].exec_refresh_conf()
        self.log.info(result)

        self.log.info('-----------重启数据库-----------')
        result = self.commonshpri.stopDbCluster()
        self.log.info(result)
        result = self.commonshpri.startDbCluster()
        self.log.info(result)
        self.log.info('---Opengauss_Reliability_Dbsys_Case259.py 执行结束-------')